Barrel adapter



FIG. 1 is an exploded perspective view of a barrel adapter, showing my new design, within a firearm barrel assembly;

FIG. 2 is a perspective view of a barrel adapter;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a cross-sectional view thereof.

The broken lines in FIG. 1 illustrating a barrel and firearm accessory are used to show unclaimed environment, and form no part of the claimed design. 

CLAIM The ornamental design for a barrel adapter, as shown and described. 